Lightning Calendar - Organize your life — it’s about time!
Doodle - Make meetings happen. With Doodle, scheduling becomes quick and easy.
Google Calendar - Spend less time managing your day & more time enjoying it
jquery-calendar - A responsive jquery calendar scheduler built with bootstrap and moment.js
Simple Calendar - A simple calendar with events (optional recurring and reminders), week numbers and a customizable...
Yahoo! Calendar - You can view an entire month or focus on a specific date and time.